CASP3 and glioblastoma: DMC-GF exerted dose-dependent inhibitory effects on GBM cell proliferation, migration and invasion and concurrently promoted apoptosis, as reflected by reduced Bcl-2 expression, activation of Bax/Caspase-3 and reversal of epithelial-mesenchymal transition (E-cadherin↑, N-cadherin↓, MMP-3↓).